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प्रश्न
State the following:
The group which contains highly reactive electronegative non-metals including chlorine.
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उत्तर
Highly reactive group 17 [VII – A].
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संबंधित प्रश्न
Consider the following elements: Be, Li, Na, Ca, K. Name the elements of (a) same group (b) same period.
What happens to the number of valence electrons in atoms of elements as we go down a group of the periodic table?
Name and state the following with reference to the elements of the first three periods of the periodic table.
Noble gas with duplet arrangement of electrons.
Name the first three alkaline earth metals.
How do alkaline earth metals occur in nature?
Write the electronic configuration of the first two alkaline earth metals.
Name the gas used in:
Light bulbs
Name the gas used in:
Bright colour advertising light works
Name or state following with reference to the element of the first three periods of the periodic table.
An alkaline earth metal in period 3.
Give a reason for the following:
Noble gases do not form compounds readily.
